Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Katherine Renfer, DO

Individual provider Family Medicine Physician · NPI 1134571763

Katherine Renfer, DO is registered under Family Practice in Alma, Michigan. Graduated from Michigan State University College of Osteopathic Medicine in 2016, 10 years ago. Practices with Sacred Heart Mercy Health Care Center, a 5-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Michigan and Tennessee.

Years since qualifying
10
Trained at
Michigan State University College of Osteopathic Medicine
Licensed in
MI, TN
In the registry since
2016
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

2025 W Cheesman Rd
Alma, MI 48801-9760
Phone: (989) 463-3451
Fax: (989) 463-4956
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 5101028738 (MI)
Family Medicine Physician Taxonomy 207Q00000X · Licence 4067 (TN)

Record details

NPI number1134571763
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedJuly 7, 2016
Last updated in NPPESJanuary 23, 2026
Certification dateJanuary 23, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2016 (10 years in practice)
Group practice Sacred Heart Mercy Health Care Center — 5 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Skin biopsy 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Education $94 1 payment · educational material or training, not a fee
Food and Beverage $52 3 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Sacred Heart Mercy Health Care Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Alma